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NULL to full 64 bits on a 64 bit address system. Soultion is to add a
(void *) cast before NULL. This makes a 64 bit MIPS kernel work and will
probably help future 64 bit ports as well.
OK from art@
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it consists of
- ECN support in TCP
- tunnel-egress and fragment reassembly rules in layer-3 not to lose
congestion info at tunnel-egress and fragment reassembly
to enable ECN in TCP, build a kernel with TCP_ECN, and then,
turn it on by "sysctl -w net.inet.tcp.ecn=1".
ok deraadt@
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tcp connections during tcp_slowtimo. apdapted from thorpej@netbsd.org
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adapated from netbsd. okay angelos@
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unless we are transmitting the last of our data. report from
jishac@grc.nasa.gov; pr/2368
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if it exists). Cuts down on code a bit, and we don't need to look at
the routing entry at TCP. Based on NetBSD. UDP case to follow.
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interface is not in bridge mode.
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to compute the checksums. Still, it shouldn't affect anything.
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from FreeBSD; fixes pr/1878
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armin@wolfermann.org
- set the persist timer so that connections in CLOSING state timeout
- honor keep-alive timer in CLOSING state.
Fixes the problem in simulaneous close situation where connections
would never leave the CLOSING state and stay arround indefinitly.
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flag delayed to ip_output(). That halves the code and reduces most of
the route lookups. okay deraadt@
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osuga@mml.yrp.nttdocomo.co.jp
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- tcp_sack_adjust() was completely rewritten, since it was erroneously
referencing receiver side sequence numbers and comparing with sender
side sequence numbers (thanks to Arun Desai (adesai@cisco.com) who
discovered the problem)
- in tcp_output(), moved assignment of sendalot=0 to the piece of code
immediately following the search for sack-eligible retransmissions
(bug identified by Arun Desai).
- tcp_input() was not clearing t_dupacks if fewer than three dupacks arrived
between acks of new data. (bug identified by Gaurav Banga (gaurav@netapp.com))
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From: Michael Shalayeff <mickey@lucifier.dial-up.user.akula.net>
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SACK is disabled for the connection or via sysctl
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set retransmit timer again if it was cleared, that can happen in SACK when
there are no elligble SACK holes to be retransmitted and the receiver window
is full.
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max_linkhdr + hdrlen <= MCLBYTES is safe.
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replaces NRL IPv6 layer. reuses NRL pcb layer. no IPsec-on-v6 support.
see sys/netinet6/{TODO,IMPLEMENTATION} for more details.
GENERIC configuration should work fine as before. GENERIC.v6 works fine
as well, but you'll need KAME userland tools to play with IPv6 (will be
bringed into soon).
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Adapted from NetBSD:
Fix a retransmission bug introduced by the Brakmo and Peterson
RTO estimation changes. Under some circumstances it would
return a value of 0, while the old Van Jacobson RTO code would
return a minimum of 3. This would result in 12 retransmissions,
each 1 second apart. This takes care of those instances, and
ensures that t_rttmin is used everywhere as a lower bound.
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protocols.
"struct tcpiphdr" is now gone from much of the code, as are separate pointers
for ti and ti6. The result is fewer variables, which is generally a good thing.
Simple if(is_ipv6) ... else ... tests are gone in favor of a
switch(protocol family), which allows future new protocols to be added easily.
This also makes it possible for someone so inclined to re-implement TUBA (TCP
over CLNP?) and do it right instead of the kluged way it was done in 4.4.
The TCP header template is now referenced through a mbuf rather than done
through a data pointer and dtom()ed as needed. This is partly because dtom() is
evil and partly because max_linkhdr + IPv6 + TCP + MSS/TS/SACK opts won't fit
inside a packet header mbuf, so we need to grab a cluster for that (which the
code now does, if needed).
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by Hari Balakrishnan (hari@lcs.mit.edu), Tom Henderson (tomh@cs.berkeley.edu)
and Venkat Padmanabhan (padmanab@cs.berkeley.edu) as part of the
Daedalus research group at the University of California,
(http://daedalus.cs.berkeley.edu). [I was able to do this on time spent
at the Center for Information Technology Integration (citi.umich.edu)]
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- fix a 4.4bsd-lite2 bug, when tcp options are present the maximum segment
size is not updated correctly, so that fast recovery forces out a segment
which is split in two segments by tcp_output(), the fix is adpated from
FreeBSD, the effective mss is recorded after option negotiation in 3way
handshake.
[I was able to fix this on time spent at Center for Information Technology
Integration (citi.umich.edu)]
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draft-mcdonald-simple-ipsec-api, kernel notifies (EMT_REQUESTSA) signal
userland key management applications when security services are requested.
this is only for outgoing connections at the moment, incoming packets
are not yet checked against the selected socket policy.
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Andreas.Gunnarsson@emw.ericsson.se
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Reed. Also make a conditional easier to read.
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